package com.smartcampusbackend.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.smartcampusbackend.model.CampusCardBalance;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

@Mapper
public interface CampusCardBalanceMapper extends BaseMapper<CampusCardBalance> {
    CampusCardBalance selectByUserId(@Param("userId") Integer userId);
} 